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      std::unique_lock::try_lock

      De cppreference.com

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      <metanoindex/>

       
      C++
       
      Biblioteca de suporte a discussão
      Threads
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      Threads
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      (C++11)
      this_thread namespace
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      this_thread namespace
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      (C++11)
      (C++11)
      (C++11)
      (C++11)
      Exclusão mútua
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      Mutual exclusion
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      (C++11)
      (C++11)
      Gestão de bloqueio genérico
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      Generic lock management
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      (C++11)
      (C++11)
      (C++11)(C++11)(C++11)
      (C++11)
      (C++11)
      (C++11)(C++11)(C++11)
      Variáveis ​​de condição
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      Condition variables
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      Futures
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      std::unique_lock
      Funções de membro
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      Member functions
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      unique_lock::unique_lock
      unique_lock::~unique_lock
      unique_lock::operator=
      Bloqueio
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      Locking
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      unique_lock::lock
      unique_lock::try_lock
      unique_lock::try_lock_for
      unique_lock::try_lock_until
      unique_lock::unlock
      Modificadores
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      Modifiers
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      unique_lock::swap
      unique_lock::release
      Observadores
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      Observers
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      unique_lock::mutex
      unique_lock::owns_lock
      unique_lock::operator bool
      Não-membros funções
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      Non-member functions
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      <tbody> </tbody>
      bool try_lock();
      		 (desde C++11)
      Tenta bloquear o mutex associado sem bloqueio. Efetivamente chama mutex()->try_lock().
      Original:
      Tries to lock the associated mutex without blocking. Effectively calls mutex()->try_lock().
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      std::system_error é lançada se não houver mutex associado, ou se o mutex já está trancada.
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      std::system_error is thrown if there is no associated mutex or if the mutex is already locked.
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      Parâmetros

      (Nenhum)
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      (none)
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      Valor de retorno

      true se a propriedade do mutex foi adquirido com sucesso, caso contrário false.
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      true if the ownership of the mutex has been acquired successfully, false otherwise.
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      Exceções

      • Todas as exceções lançadas por mutex()->try_lock()
        Original:
        Any exceptions thrown by mutex()->try_lock()
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      • Se não houver um mutex associado, std::system_error com um código de erro de std::errc::operation_not_permitted
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        If there is no associated mutex, std::system_error with an error code of std::errc::operation_not_permitted
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      • Se o mutex já está bloqueado std::system_error, com um código de erro de std::errc::resource_deadlock_would_occur
        Original:
        If the mutex is already locked, std::system_error with an error code of std::errc::resource_deadlock_would_occur
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      Exemplo

      Esta seção está incompleta
      Motivo: sem exemplo

      Veja também

      		 locks the associated mutex
      (função pública membro) [edit]